Optical solitons and complexitons for the concatenation model in birefringent fibers.

The current paper reveals optical soliton solutions to the concatenation model in birefringent fibers. Two integration approaches are adopted in the paper. They are the enhanced Kudryashov approach and the new projective Riccati equation's method. These reveal soliton and complexiton solutions that the method of undetermined coefficients failed to recover in earlier work. The parameter constraints are also displayed for the existence of the solitons and complexitons. [ABSTRACT FROM AUTHOR]